ILLUMINATION APPARATUS

摘要

An illumination apparatus comprises a plurality of LEDs aligned to an array of directional optical elements wherein the LEDs are substantially at the input aperture of respective optical elements. An electrode array is formed on the array of optical elements to provide at least a first electrical connection to the array of LED elements. Advantageously such an arrangement provides low cost and high efficiency from the directional LED array.

主权项

1. A method of manufacturing an illumination apparatus, the method comprising:
forming a non-monolithic array of light emitting elements on a support substrate; measuring a combined spectral output for at least some of the light emitting elements in a first region of the support substrate; aligning a first wavelength conversion layer with respective light emitting elements of the first region, a spectral characteristic of the first wavelength conversion layer selected based on the measured combined spectral output from the at least some of the light emitting elements of the first region; measuring a combined spectral output for at least some of the light emitting elements in a second region of the support substrate; and aligning at least a second wavelength conversion layer with respective light emitting elements of the second region, a spectral characteristic of the second wavelength conversion layer selected based on the measured combined spectral output from the at least some of the light emitting elements of the second region.